22626721946 has 8 divisors (see below), whose sum is σ = 34580462004. Its totient is φ = 11099901280.

The previous prime is 22626721927. The next prime is 22626721979. The reversal of 22626721946 is 64912762622.

22626721946 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 21902520025 + 724201921 = 147995^2 + 26911^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 22626721946.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106729715 + ... + 106729926.

Almost surely, 2^22626721946 is an apocalyptic number.

22626721946 is a deficient number, since it is larger than the sum of its proper divisors (11953740058).

22626721946 is a wasteful number, since it uses less digits than its factorization.

22626721946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213459696.

The product of its digits is 870912, while the sum is 47.

The spelling of 22626721946 in words is "twenty-two billion, six hundred twenty-six million, seven hundred twenty-one thousand, nine hundred forty-six".